Year	Number of Firms
1997-01-01	5
2002-01-01	8
2003-01-01	4
2004-01-01	11
2005-01-01	15
2006-01-01	13
2007-01-01	16
2008-01-01	23
2009-01-01	19
2010-01-01	14
2011-01-01	18
2012-01-01	17
2013-01-01	22
2014-01-01	22
2015-01-01	27
2016-01-01	24